Electrical Circuits Review

Vocabulary Matching Match the vocabulary term to the correct definition. Energy Source provides the power to the circuit (example: battery) Complete Circuit a circuit with no breaks or gaps in the path Incomplete Circuit a circuit with a break or gap in the path Switch used to open or close a circuit Conductor easily allow electricity to flow through Insulator does not easily allow electricity to flow through Series Circuit one path of electrical current (one light bulb goes out, they all go out) Parallel Circuit multiple paths of electrical current (one light bulb goes out, not all will go out) What type of circuit is this? Closed Circuit Open Circuit An Incomplete Circuit Parallel What would happen to this circuit if the switch was opened instead of closed? The bulb will light The bulb will not light The bulb will be dimmer The paper clip is used instead of a switch in this example to close the circuit. What physical property of a paper clip makes its use a good plan? It is an insulator It is soluble It is a conductor It is magnetic What type of circuit is shown above? Parallel Circuit Series Circuit Open Circuit Incomplete If a cut is made at the point shown, how many bulbs will light up? 0 1 2 3 Why will the bulb not light up in this scenario? The switch needs to be open The battery is dead Yarn is not a conductor of electricity The circuit needs an additional battery Which part of this circuit will not work and why? The battery because it is not connected correctly. The bell because it is not connected correctly. The light bulb because it is not connected correctly. When electricity travels through wires, it always produces - heat or thermal energy nuclear energy mechanical energy light energy Label the parts of a circuit:energy sourceloadswitchconductor energy source load conductor switch Conductors and Insulators Sort Classify each object by its electrical conductivity. There will be 7 objects in each group. Conductors iron nail paper clip gold ring iron fillings salt water copper penny graphite (pencil lead) Insulators plastic cap toothpick cork cotton shirt paper eraser rubber band Label theclosed circuit and the open circuit. open circuit closed circuit Label the parallel circuit and the series circuit (BE SURE TO USE CORRECT SPELLING) series circuit parallel circuit Problem Circuits Match the circuit pictures to correct problem the circuit is showing in the picture. not connected to battery correctly break in the path (a gap in the wire) Electricity is the flow of _ through a closed circuit. protons neutrons electrons atoms A _ has only one path for the electricity to travel. parallel circuit series circuit A _ allows you to turn off one light without turning off all the lights. parallel circuit series circuit If you turn off one light in a circuit, all the lights turn off. parallel circuit series circuit The type of circuit that has more than one path for electricity to follow. parallel circuit series circuit If you increase the voltage, the current will... increase decrease stay the same If you decrease resistance, the current will... increase decrease stay the same What will happen to a light bulb in a series circuit if the current is increased? become brighter become dimmer stay the same CIRCUIT CHALLENGE: Look at the circuits below. Determine how the circuit will work based on the switch. Write ON or OFF by each BULB. off off on on off on on on on off off on off off on off on on on on off off on on on on off off